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参数资料
| 型号： | MAX8901BETA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/14页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT 8-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 700kHz ~ 800kHz |
| 电源电压： | 2.6 V ~ 5.5 V |
| 输出电压： | 24V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
Highest Efficiency Supply for 2 to 6
Series WLEDs in a 2mm x 2mm TDFN Package
Typical Operating Characteristics (continued)
(Circuit of Figure 5, I LED = 24.75mA, V IN = V ON = 3.6V, C1 = 1μF, C2 = 1μF, T A = +25°C, unless otherwise noted.)
PWM DIMMING RESPONSE
SERIAL PULSE DIMMING
V ON
(MAX8901A)
MAX8901A/B toc13
2V/div
RESPONSE (MAX8901B)
MAX8901A/B toc14
2V/div
V IN
D = 90 %
D = 10%
0V
50mV/div
V ON
V IN
0V
50mV/div
(AC-COUPLED)
(AC-COUPLED)
V CS
V OUT
500mV/div
0V
20mV/div
V CS
V OUT
1V/div
0V
20mV/div
I LEDs
f ON_PWM = 100kHz, DUTY
CYCLE CHANGE: 90% TO
10%, C2 = 0.1 μ F
0V
20mA/div
0mA
I LEDs
0V
20mA/div
0mA
30
25
20
15
10
4ms/div
LED CURRENT vs. PWM
DIMMING (MAX8901A)
507.5
507.0
506.5
506.0
505.5
505.0
504.5
504.0
10ms/div
V CS vs. LED CURRENT STEP
(MAX8901B)
5
0
R CS = 20 Ω ,
f PWM = 100kHz
503.5
503.0
502.5
0
20
40
60
80
100
0
5
10 15 20 25
30
35
25.0
24.8
PWM DUTY CYCLE (%)
MAXIMUM LED CURRENT
vs. TEMPERATURE (MAX8901B)
750
745
LED CURRENT STEP
MINIMUM LED CURRENT
vs. TEMPERATURE (MAX8901B)
24.6
740
24.4
735
24.2
24.0
730
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
6
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相关代理商/技术参数 |
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|---|---|
| MAX8901EVKIT+ | 功能描述:LED 照明开发工具 Evaluation Kit for the MAX8901A and MAX8901B RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX8902AATA+ | 制造商:Maxim Integrated Products 功能描述:LDO REGULATORS 制造商:Maxim Integrated Products 功能描述:LOW-NOISE 500MA LDO REGULATORS IN A 2MM X 2MM TDFN PACKAGE - Bulk |
| MAX8902AATA+T | 功能描述:低压差稳压器 - LDO 500mA LDO Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX8902AATAT | 制造商:MAXIM/DALLAS 功能描述: |
| MAX8902BATA/V+ | 制造商:Maxim Integrated Products 功能描述:LOW-NOISE 500MA LDO REGULATORS IN A 2MM X 2MM TDFN PACKAGE - Rail/Tube |
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